Sewing machine ruffler



NOVA- 1931. H.-MAASHOFF ET AL 9 SEWING MACHINE RUFFLER Filed May 7. 1928 Patented Nov. 1 l I 5 uudolmnsnorr Ann qnonen w. n; New-EASTER connncrrctir, reg mens f TO THE GREIST mmrrncrunmeoomranygn conronarron or CONNECTICUT Q r I r This invention ,rlates to that class Draw ing machine irufllersfgenerally know asv five-stitch rufll'erfstin' that they have heretOforeTU'Sually been constructed tomake'a rulile at e ach stitch ofthe sewing machine; or at each five or a greater or lessernumber of H stitches; and theinvention has for its'object to "provide arufilerof the class referred to in which the-adjustment from one class ofwork to the other may be readily and-easily effected. To thisendthe invention comprises two/ratchet wheels by which the'intervals of the} strokes of the ru'tfiing blade maybe controlled, both of said ratchet wheels, which are mounted on the same pivot pin, beingconstructed witha plurality of deep'andshallow notches and one off said ratchet wheels being adjustable relative to theothenon said pivot pin. In onepositionf occupied by the adjustable ratchet wheel two deep notches on both other position joccupiedby the adjustable ratchet wheelonl'y a single deep-notch 'ofth'e adjustable wheel will be in register witli 'a deep notch of the other wheel; so that astroke I 'oftheruifliiig blade wi11==oecur only at each ten orjtwelve or any other desired number of stitches; of the sewing; machine, Theimproved ruffier is al'sofsoconstructed that, by

- proper adjustmenha rufili'ng strokewill be imparted to the rufliing blade at each stitch otthe s'ewing machine; orthe ruflling' blade may'r'be thrown out of action entirely whe v V plain'sewin'g'isto be'done f In the accompanying" drawings Figs. land 2' are opposite :si'deviews oftheimproved rut f flen; Figs. (Band 4 are VIeWS similar-to Fig.2

.but with certainpart's indifferent positions of: adjustment. FigL115 is a rear end :view of tail .viewsof'the-ratchet wheels,.Fig. 8 'showring a modifiediorm of one of the ratchet wheels."" I

- fReferringyto the (ma s, 12denotes th frame oit therufiier. provided," asusuahwith a NGMACHIN a rma 4 m d 19 28;" see no; 275,714.

forl'ced forward end 13, to adaptthesame for attachment to the presser barofasewing ma- I chine. iMounted onlthe-frame l2, by a pin or rivetil l, is the "main operatin'g lever 15 forked at itsforward end for engagement-with a pin or screw carried by the needle bar of the sewingmachine, and fulcrumed on the pin or rivet 14:,is a'pendulous lever 16 jointed at its loWeren'd to therufiiingblade carrier 1'7to whichlatter'is attached the rufliing blade' lTF; The pendulous lever 16 is provided-with an arm .16 positioned beneatha contact screw '18 carriedby the operating lever 15, said screw being frictionally retained in any desired position of adjustment by the springf19 mounted on said operating lever 15; V Attaclied to a'plate20, pivotally secured to the frame 12 by a fulcru'm'pin or rivet 21 is a pivot pin or rivet 22 on which are mounted two ratchet wheels 23 and 24:, adjacent or contiguous to each other. -The outer ratchet 7 Wheel23'is provided with three deep notches 23* and 23 and'with a plurality of shallow notches23t The ratchet wheel 24is provided withtwodeepnotches 24 and With a plurality ofshallow notches 24 between each of said. deep notches." In the construction shown therearefive of' these shallow notche'sbetweensaid deep notches,thus providing for a strokeof the rufliing blade at each six stitches of the-sewing machine, although it will'be; understood that said ratchet wheel might be constructedwith a greater or lesser number of these shallow notches between each of the deep notches 24. The ratchet wheels 23 and 24 are held frictional engagement with each other so that they may rotate together. The ratchet wheel 23" is 1 providedwith'lan arcuate slot 23 and I the ratchet wheel 24 is provided'with a pin 24 fittin g'in said slot. "The ratchet wheel 23 is also provided with an outwardly extending pin-23 by-means of which the'saidratchet wheel may be, circularly adjusted relative to I the ratchetwheel 24 to an extent permittedby the pin 24 fitting in the slot 23 of the ratchet wheel 23. Iv 5 Attached to the plate on which the ratchet wheels are mounted is 'a spring25 having a tooth over which the teethof when desired.

the ratchet wheel 24'ride, said tooth serving as a'detent pawl for preventing backward rotation of the ratchet wheels. t

' Thependulous lever 16 is provided Witha shoulder 16 adapted to be engaged bya laterally extending pawl 26 integral withfla spring-pressed pawl-carrier 2Tmounted on the main operating lever 15 and arranged to engage theteeth of the ratchet wheels 23 and 24 andalso properly positioned to engage the said shoulder 1 16 on the pendulous lever 16 When the ratchet wheel 23 is of adjustment shown in Fig, 2, the: deep notches 23 of said ratchet wheel will be inv registeriwith the two deep tnotches 24 offlthe ratchet wheel .I 24 and thus, with the ratchet shoulder 16" when riding over the shallow notches of the ratchet wheels. -;.When, however, the ratchet wheel. 23' is in the position of adjustment shown in Fig. 3 the'sdeep notch 23" in said ratchet wheelwill be in register with one, of the deep notches 24 of the ratchet wheel 24, while the other ,deep notch 24 of the ratchet wheelo24 will be covered notches 23 and 24 to impart. a forward stroke to therufiling blade-,iat each twelve.

stitches ,fsaid pawl being held out of said en.- gagementwiththe said shoulder lfi during the formationof eleven stitches. When a ruifie is to be made at each stitch V ofzthe sewing machine the ratchet wheels may. be lowered to the, position -shownin Fig. 4,

as provided for in. the constructionshown by U. SLPatentNo,1,Q44,645, so that said'ratchet wheels-will be below thepathoftravel ofthe pawl 25, and the said pawl will therefore be in constant-position to engage the shoulder l6 on thependulous lever 16, ie-impart a forward stroke to the ruflling blade at each Stitch; I ll V 1 To render therufliing blade inoperative, when plain sewing is to bedone, the pawl car- 'rier 27 may be adjusted to the positionshown in Fig.4 so as to be rendered inop'erative,'the

said pawl being held'in this inoperativeposh t1on by the finger 19? on the spring 19,-said fingerat such times engaging a recessf'2'Z in;

said pawl carrier' The ruflier is provided with the usual arator; plate 28 affixed toa carrier 29 which isreinovably attached to the frame l2 in a well-known manner.

outer face of the wheel24. V by the ratchet wheel ,23,.-;and thus the pawl 26' will, in the rotationcf the said ratchet wheels, fall into .the said registering deep Mounted on the contact finger 16 of the pendulous lever is a contact lever 30 having a projection 30 which maybe adjusted to the position shown in dotted lines in Fig. 1 above the top of said finger so as to lessen the lost, motion between the contact screw and said finger when unusually long strokes are to be I imparted to the milling blade, this'adjustable lever 30 being like that shown in U. S. ap-

plicationserial N0. 264,846, filed'March 26,. 1928; i w

This contact lever is preferably employed to secure avery long throw of the rufiling' blade in making widepleats, and is considered preferable tothe'use of along contact screw -18, by which the same result might be effected,

out; OfAOPBItZlZiOIl quicl'zly thus making the adjustment easier than by long screw adjustment. ,1;

'It isnot essential that both ofthe ratchet wheels 23 and 24 should be constructed with shallow; notches in addition to the deep notches, asfone of. saidwheels, for example the outerwheel 23 might have a plainlperiphery. between the deep notches, as ,shown in Fig.8, This form ofthe said wheel may be of spring steel, and will preferably be-provided with two. pins 23 for convenient adj ustment on thewheel 24, and maybe frictionbetween any desired numberaof a'plurality of stitches, or-may be thrown out of operation altogether when plain sewing is to be. done.

I Having thus described our invention, we clafiimand desire to, secure by;Letters Paten r .1'.-"In asewing machine rufiier, the combination with a rufiiing blade andmeans 3 for as theadjjnstable levercanbe thrown into or v reciprocating theisame, of tworatchetwheels adapted to rotat'e together andleachconstructed with aplurality ,of deep notches, spaced apart from each other by intervening shallow;notches,.one of said. wheels being circularly adjustable relative to the. other. 1 s 2.] In "a sewing machine rufiler, the ;combi+ nation with a rufliing blade,fand means for V reciprocating the'same, of, two ratchet wheels,

one of said wheels having two deep notches and a plurality of shallow notches, andthe other of said," wheels having. three deep notches, one of said wheels being circularly ad ustablerelative to, the other said 'zdeep notchesv being spaced, apart by ;,interviening shallownotches.v q

nation-with arufiiifng blade and means for rec procating the same, of t-wo adjacentrat- '3. In a sewingmachine ruflier, the combi chet 'vvheels adapted to rotate together and each constructed with a plurality of spacedapart deep notches, one, at least, of said wheels having'a' plurality of shallow notches,

one of said "wheels having' an arcuate slot and the other having a pin extending into usaid slot-so'thatlone of said wheels may be wheel's each having a plurality of spaced-t circularly adjustable-relative to the other.

a. In a sewing machine rufiler, the combination with a ruflling blade, of tworatchet i apart deep notches, one, at least, ofsaid wheels having also a plurality of shallow notches, one of said wheels'being circularly adjustable relative to the other, and means;

for 'operating said rufiling blade and for intermittingly rotating said wheels:

5. In a sewing machine ruflier, the combination with a rufiiing blade, of two ratchet 20 Wheels eachhaving a plurality ofs'pacedaparti deep notches and one, at least, ofsaid wheels having also a" plurality of shallow notches, one of said wheels having an arouate slot and the other having a pin extending into said slot so that one of said whee'ls inlay becircularly adjustable relative to the 7 other, and means for operating said ruflling blade and for intermittingly rotating said wheels.

In testimony whereof we aflix our signatures.

*' HUGO MAASHOFF.

e GEO. W. PRATT. 

